A. . Khalid, S. Kausar, A. . Sadiqa, A. . Abid, and S. Jabeen, “Relevance of Preoperative Pain Education To The Cardiac Patients on Their Response To Postoperative Pain Therapy: Preoperative Pain Education to the Cardiac Patients”, PBMJ, vol. 5, no. 2, pp. 147–151, Feb. 2022.